Coal Resources
- American Coal Foundation
- BP's A+ For Energy Program
- California Energy Commission
- EnergyTeachers.org
- FirstEnergy Corp.
- Houston Museum of Natural Science
- Illinois Department of Commerce and Economic Opportunity
- National Council on Economic Education
- National Energy Education Development (The NEED) Project
- Nebraska Public Power District
- NOVA Labs on PBS.org
- Ohio Energy Project (OEP)
- Railroad Commission of Texas
- Resource Action Programs
- Science Screen Report (SSR)
- U.S. Department of Energy - Office of Scientific and Technical Information (OSTI)